[[Image:Wound sarcoid.jpg|left|thumb|250px|<small><center>Sarcoid (Image courtesy of [http://drupal.thedonkeysanctuary.org.uk The Donkey Sanctuary])</center></small>]]
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[[Image:Sarcoid removed wound.jpg|right|thumb|250px|<small><center>Wound following removal of sarcoid (Image courtesy of [http://drupal.thedonkeysanctuary.org.uk The Donkey Sanctuary])</center></small>]]
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[[Image:Healing of sarcoid wound.jpg|right|thumb|250px|<small><center>Healing of wound (Image courtesy of [http://drupal.thedonkeysanctuary.org.uk The Donkey Sanctuary])</center></small>]]
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[[Sarcoid - Donkey|Sarcoid]] transformation at wound sites is a very common (and increasingly important) reason
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for wound healing failure. Sarcoid fibroblasts are a strong inhibitor of wound healing and the extent
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of the sarcoid within the wound/granulation tissue needs not to be high for inhibition to occur. The
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extent of the transformation is sometimes very limited but the effects remain profound. Healing
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is inhibited until all tumour cells are removed.
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Confirmation of the problem is not always easy. Multiple biopsies from different parts of the tissue should be taken to ensure the maximum chance of finding it.
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Special precautions such as early dressing application and particularly
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control of fly contact should be taken to protect wounds on donkeys that
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already have sarcoids at other sites. Wounds that involve sarcoid tissue
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are extremely dangerous because they are very difficult and sometimes